I was hoping you or mls had something more concrete.My personal thought is green brown fibre with metal. Here’s why: That’s an 8086 cpu and 8087 coprocessor, and there’s gold pins for the dip socket it fits in (underneath). And despite the later generation missing individual gold legs those are ceramic. Telling me we’re early 90s, probably 89, 90 or 91. Meaning still somewhat of value in scrap. It’s higher than peripheral. But I can’t justify telco.There’s too much board for without metal classing.. hence my thought Green brown fibre with metal.

_________________-- my grades are my own and do not represent an offer from boardsort, nor are they guaranteed. Please keep that in mind.

My database says it’s a peripheral controller and a quick net search says it’s a serial interface. My guess is a CAD/CAM unit of some sort, like early 3d printing when they took up whole rooms, not a used microwave, to store. Meaning that what’s there isn’t going to be junk, I can also now see the gold pin holes, guessing a copper or silver sandwich board off hand. I’ll double down on green brown fibre with metal. My Final answer. ;) lol

_________________-- my grades are my own and do not represent an offer from boardsort, nor are they guaranteed. Please keep that in mind.

Those chips should go as standard ic chips... even being 8086 models (without the gold cap, brazing, and legs there is little value to weight ratio they tell me)... however it looks like both are soldered on... I would throw that in with telecom because most of the weight is chip (with very little extra board) and the price of telecom is a bit under the ic chip price.

That's not to say you can't set it aside and ask if it is a better grade.

with so much electronics out there for scrapping it is a tough job to sort. To all the pros I say thank you, because if you all have different opinions on some items it means that when I take my stuff in and they tell me I misjudged some of my items I won't feel like a big dummy.

It’s a rarity all three of us would be different. Tells you how unique that piece is in general scrap terms. (Not that we don’t all but heads from time to time regardless). :)K is an original; mls goes in person and I’ve been sending strange, weird, bizarre and one-offs since day 1. Bottom line it’s one Chris and Bruce will need to decide on.

I’ve honestly never seen an 86 and 87 on a single socket with no buffer at all. Seems to me to be a bad idea to put two memory independent ICs on a single socket! Forget about timing cycles. Looks to me like a race condition issue on so many fronts; just glad I wasn’t writing code for that disaster.

_________________-- my grades are my own and do not represent an offer from boardsort, nor are they guaranteed. Please keep that in mind.

Final thoughts: interforum MLS, I’m really lost on this one. My thoughts were that prior to 1996 and the introduction of the plastic IC 80XXX series they still used the identical die. With that we can subtract the die value from the 80XX gold cap CPUs by offsetting the cap value with pentium ceramic value, the pin value vs an IC for pent ceramics. Then in return adding the ceramic weight back in. What I’m left with is between $4 and $8 (per lb) in an actual value based on what I conclude to be boardsort’s valuation table.Making either telco or fibre or IC all possibilities.

_________________-- my grades are my own and do not represent an offer from boardsort, nor are they guaranteed. Please keep that in mind.

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